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The LEO Network is a worldwide network of observers and experts that share their observations of environmental change.
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Juneau's Mendenhall Glacier has officially receded from Mendenhall Lake
Scientists confirm Mendenhall Glacier is no longer in contact with Mendenhall Lake, marking a new phase in its long retreat. The shift may slow near‑term ice loss but could alter tourism and views from the visitor center.
Juneau, Alaska, United States
Alaska Public Media

Dyngjujökull moving many times faster than usual
A surge appears underway at Dyngjujökull, with GPS data showing the glacier moving at roughly 150 meters per year since early July—many times its normal speed. Experts note Dyngjujökull typically experiences multi‑year surges every 20–30 years, with the last occurring in 1998–2000.
Dyngjujökull, Vatnajökull, Iceland
mbl.is

Dirty Ice on Exit Glacier
Dirt on Exit Glacier makes it look very different then the information posters.
Seward, Alaska, United States

Glacier retreated about 200 meters
Vestari Hagafellsjökull, on the south side of Langjökull, has retreated about 200 meters since 2023, according to a preliminary glacier-terminus survey conducted on 20 September 2025. Since 2009 the glacier has receded roughly 973 meters through 2023, with accelerated retreat likely tied to this summer’s warmth.
Langjökull, Southern Region, Iceland
mbl.is

A retreating glacier has revealed a new island in Southeast Alaska
As the Alsek Glacier has retreated, it has eroded a basin that is now filled by a lake.
Alsek Glacier
Anchorage Daily News

Second glacial outburst flood expected to cause ‘minor flooding’ in Juneau
The National Weather Service issued a flood warning Monday morning, saying that water gauges indicate the Suicide Basin had started to release into Mendenhall Lake.
Juneau, Alaska, United States
Anchorage Daily News

Researcher from Italy missing after being swept into hole on Juneau’s Mendenhall Glacier
The man’s travel companions lost sight of him after he fell into a stream and was swept into a vertical opening in the ice, Alaska State Troopers said.
Mendenhall Glacier, Alaska
Anchorage Daily News

Iceland on Alert as Glacial Waters Surge from Langjökull
A sudden glacial outburst flood from a marginal lake near Langjökull sent water into the Svartá and downstream into the Hvítá in Borgarfjörður, peaking above 400 cm overnight before easing to just over 300 cm. Authorities warn further river flooding is possible in coming days, with increased landslide risk in southeast Iceland.
Húsafell, Borgarfjörður, Iceland
Iceland Review

Juneau's glacial outburst flood has crested, water levels now dropping
The flood reached a record-breaking crest of 16.65 feet at about 8 a.m. Wednesday. Water continues to seep into Valley neighborhoods.
Juneau, Alaska, United States
Alaska Public Media

Retreating Glacier Could Fill Nuuk Fjord with Ice for Years
A study warns that Narsap Sermia’s rapid retreat could plunge into a deep trough, releasing ice into Nuuk fjord year-round for the next two decades.
Nuuk, Sermersooq, Greenland
Sermitsiaq

Geologist on the situation in the Lötschental: "Tidal waves and debris flows could threaten"
A massive landslide from the Birch Glacier in Blatten has created a debris cone threatening nearby villages with potential tidal waves and debris flows, as the glacier's movement could lead to further catastrophic events.
Blatten, Valais, Switzerland
Schweizer Radio und Fernsehen (SRF)

Skagafjörður pastures severely damaged after winter flooding in Héraðsvötn
A farmer in Skagafjörður faces significant losses, having to replant around 20% of their pastures after major winter floods. Héraðsvötn breached a protective embankment, burying the fields in sand and silt.
Sauðarkrokur, Northwest, Iceland
RÚV

Forest Service warns Juneau residents to stay away from Mendenhall Glacier amid calving concerns
The U.S. Forest Service has warned Juneau residents to avoid the Mendenhall Glacier due to a large crack that could lead to significant calving, posing risks to those recreating on the frozen lake.
Alaska Public Media

Glacier calves into Portage Lake, stranding 2 skaters and underscoring risks of recreation on ice
A window of cold and clear weather has drawn hundreds of people to skate, bike and walk on the lake ice in recent days.
Portage, Alaska, United States

Bridge Collapses in Borgarfjörður Due to Flooding
A temporary bridge in Borgarfjörður, Iceland, collapsed after an ice jam in the Hvítá River caused significant flooding.
Borgarfjörður, West Iceland, Iceland
Iceland Review

Juneau water levels recede after moderate Mendenhall Lake and River glacial outburst
The National Weather Service has canceled a flood warning issued Saturday as waters continue to recede Monday morning.
Adelyn Baxter, KTOO - Juneau and Clarise Larson, KTOO - Juneau

The glaciers in Finnmark are melting the fastest of Norway's glaciers
The glaciers in Finnmark, particularly the Øksfjordjøkelen, are melting rapidly, with significant shrinkage observed each year, raising concerns about climate change impacts.
Øksfjordjøkelen, Loppa, Finnmark
NRK
Kristina Brekke, Hanne Larsen, Bent Lindsetmo, Kai Erik Bull, Vanja Ulfsnes

More than ten warnings issued due to Icebergs
The Icelandic Coast Guard has issued many warnings regarding icebergs in the past two days.
Árneshreppur, Westfjords, Iceland
RÚV

'Haunting glimpse of Climate Change': Snow vanishes from Uttarakhand's Om Parvat for the first time in history
For the first time, snow has completely disappeared from Uttarakhand's Om Parvat, a significant change noted last week.
Om Parvat

Search Called Off, No Tourists Under Ice
The search for tourists believed trapped in a collapsed Icelandic ice cave has ended, revealing all were accounted for; experts criticize year-round tours as unsafe.
Höfn, Southern Region, Iceland
Iceland Review

Glacial flood on Skaftá River - Civil Defence "level of uncertainty"issued
The glacial flood, or jökulhlaup, is the first from the western cauldron in almost three years. This is considered to be a significantly lengthy break.
Vatnajökull Glacier
RÚV

Juneau glacial outburst flooding begins; Mendenhall Lake and River set to hit near-record levels
Minor flood stage will begin Monday morning, with flood water expected to crest sometime early Tuesday.
KTOO

Melting glaciers increase supply of electrical power in Iceland
Melting glaciers in Iceland are contributing to an increased supply of electrical power. In the past ten years, the additional supply has amounted to one medium-sized power plant.
Iceland

Homeowners along the Kenai River fight rising flood waters
The Kenai River has been running high ever since two glacier dammed lakes emptied into the river over the last few days. In the Kenai Keys subdivision near Sterling, the river is lapping at the doorsteps of the hundred or so homes that line the river. Longtime resident Frank Turpin said although he’s seen worse flooding, this one is significant. The road leading into the gated subdivision is flooded in numerous places although some vehicles can still make it through. Neighbors who live on higher ground have offered their yards for people wishing to store cars or other items until the waters recede.
Sterling, Alaska, United States

Unprecedented double glacial dam release brings flooding to the Kenai
Usually, the Snow Glacier and Skilak lakes release every two or three years. Both at the same time is unprecedented.
Skilak Lake

Record flooding from Suicide Basin destroys one home, swamps others and cuts off access
A home collapses into the Mendenhall River on Saturday due to a record amount of flooding from Suicide Basin since an annual cycle of water release began there in 2011. Officials said nobody was injured when the house collapsed, but other structures along the riverbank are at risk. (Screenshot from video by Sam Nolan).
Juneau Empire

Alaska tourism threatened as iconic glaciers melt away
As the world’s glaciers retreat, so does the outlook for the Alaska tourism sector. But the pace of that retreat is still in human hands.
Cooper Landing, Alaska, United States

Snow shortage threatens Alps with wet winter season
The word for it here is Schneemangel or snow shortage. There's a phrase for when the snow is plentiful too - das weisse Gold - white gold. It's a reflection of how many alpine communities depend on winter sports for their livelihoods. World Cup skiers will race on artificial snow this Saturday as the Alps see record high temperatures.
Adelboden, Bern, Switzerland
BBC News

How far has the Mendenhall Glacier retreated in the last 12 months?
Juneau resident James Wycoff noticed on his regular walks to Nugget Falls that the face of the glacier seemed to be retreating faster this year than he’s ever seen before. The Mendenhall Glacier’s terminus retreated more than 800 feet.
Mendenhall Glacier
KTOO

Glacial flooding continues in the Grímsvötn area
The flooding started yesterday in the Grímsvötn volcano area. The water flow at the source of the discharge reaches 300 cubic metres per second. The jökulhlaup is expected to last about 24 hours, which is how long the water takes to get to the Gígjukvísl canal on Road 1.

Castner Glacier Half-Collapsed
Hikers should be cautious when hiking the Castner Glacier trail since chunks of ice may fall and the streams and rivers are very fast.
Castner Glacier Ice Cave

The Castner Glacier ice cave is collapsing and gushing meltwater
Scientists and officials are advising hikers to be careful around the ice cave.
Castner Glacier

Ice shelf collapses in East Antarctica, long thought to be stable
The collapse last week of an ice shelf the size of New York City was the first time scientists have ever seen an ice shelf collapse in this cold area of Antarctica.
Conger and Glenzer Glaciers

‘Blue Blob’ Is Slowing Icelandic Glacier Melt — For Now
Icelandic glaciers have been losing mass since the Little Ice Age, but that process has slowed over the last decade thanks to the influence of what scientists have dubbed the Blue Blob, “an area of regional cooling in the North Atlantic Ocean to the south of Greenland.
Reykjavík, Capital Region, Iceland

Glacial Outburst Flood Will Likely Peak on Sunday
The glacial outburst flood, or jökulhlaup, which started when the ice sheet in the Grímsvötn volcano beneath Vatnajökull glacier began to melt 11 days ago, is predicted to reach its peak on Sunday. At time of writing, the Icelandic Road and Coastal Administration does not believe that the runoff will affect traffic on Route 1 […]

A peninsula disappears in Franz Josef Land
Eva-Liv Island in the Franz Josef Land Archipelago has almost lost a peninsula. A 3-km-long strait has formed between the main land and the melted part where Cape Mesyatsev is located. Russian Arctic National Park employees discovered the missing land during an expedition to study walruses.
The Arctic

Earthquake at Bárðarbunga Caldera
Saturday’s incident is notable as Bárðarbunga, a stratovolcano located underneath Iceland’s largest glacier, Vatnajökull, is the second largest volcano on the island. Geophysicist Páll Einarsson told reporters, however, that the powerful earthquakes underneath the volcano this summer were likely due to land rise and that an eruption did not appear to be imminent.

Skaftá Glacial Outburst Flood to Reach its Peak on Wednesday
A second glacial outburst flood began in the eastern Skaftá ice cauldron under Vatnajökull glacier late Saturday evening, RÚV reports. This flood follows a smaller one that originated in the western Skaftá ice cauldron and is expected to do as much damage to local communities and farmland as the last glacial outburst flood on the Skaftá river in 2018.

24 meters in a year: Like walking in a lunar landscape
Over the course of a year, the end of the glacier arms of the mighty Hardangerjøkulen has retreated so fast that huge amounts of gravel and stone comb have now appeared.
Midtdalsbreen, Hardangerjøkulen, Vestland, Norway
NRK

Greenland experienced 'massive' ice melt this week, scientists say
With climate change fueling high temperatures across the Arctic, Greenland lost a massive amount of ice on Wednesday with enough melting to cover the U.S. state of Florida in 2 inches (5.1 centimeters) of water, scientists said. It was the third-biggest ice loss for Greenland in a single day since 1950.
Greenland
ArcticToday

Blue mussel die-off in Skagway
"The first wave of dead mussels washed ashore on July 14th, possibly earlier but this was the first report we received. I took the pictures included in my LEO observation on July 16th, and the temperatures were only just then beginning to climb into the upper 70s and lower 80s."
Skagway, Alaska, United States
Kris Holderied, Mandy Lindeberg, Reuben Cash

A Denali glacier is speeding downhill, potentially hampering climbers and increasing flood risk
Muldrow Glacier on the north side of Denali is surging for the first time since the 1950s — moving 50 to 100 times faster than its usual pace. The surge was first glimpsed by K2 Aviation pilot Chris Palm last month. “I was thinking it looks really difficult to get onto the glacier right now,” Palm said. “It’s all shattered and torn up and jagged ice and deep crevasses everywhere.” The event could impact mountaineers scheduled to use the north approach to the mountain .

Chasing the Muldrow Glacier: Denali’s Muldrow Glacier is surging for the first time in 64 years and scientists are rapidly responding
For the first time since the 1950s, Denali's Muldrow Glacier is surging! It is estimated that the glacier is currently advancing between 10-20 meters (30-60 ft) a day. This has major implications for the popular north side climbing route, and may lead to a significant flood of the McKinley River. The surge may have started as early as January of this year and could continue for several more months.
Muldrow Glacier, Denali Ntl. Park, Alaska
National Park Service, Denali Park & Preserve

Mother of all jökulhlaups reported in Southeast Alaska
Scientists believe a massive glacial dam release - or jökulhlaup - recently occurred in Southeast Alaska. But they probably would not have known about it if they had not been tipped off by an observant commercial fisherman.

After record-warm summer in Svalbard, extreme meltdown on the glacier
When glaciologist Jack Kohler returned to Austre Brøggerbreen in Svalbard, he was shocked. More than three meters of the ice at the glacier front had melted away. That's a record. And an ice tunnel had become a trench.
Austre Brøggerbreen, Ny-Ålesund, Svalbard, Svalbard and Jan Mayen
NRK

Researchers came to study Russian Arctic glacier, but found only big lake
The glaciologists from Moscow came too late to see the MGU glacier in the North Ural.
The Independent Barents Observer

Record heat in Svalbard is causing problems – Mine 7 inundated with meltwater
The glacier over Mine 7 in Adventdalen on Svalbard is thawing in the summer heat. This has resulted in a severe flood with thousands of liters of water.
Gruve 7, Advendtdalen, Svalbard
Anja Ariel Tørnes Brekke, Aslaug Aarsæther

Surprise flood kills salmon in West Iceland
A jökulhlaup flood struck West Iceland’s Hvítá river in the early hours of Tuesday morning when water from a lagoon by the Langjökull glacier suddenly broke a new path and flowed in a different direction. Thick glacial mud now coats the river banks, and much of Borgarfjörður fjord.

Last fully intact ice shelf in Canadian Arctic collapses
It lost more than 40 per cent of its area in just two days at the end of July, researchers said on Thursday.
Milne Ice Shelf
Global News

Climate change hits back, Svalbard coal mine flooded by melting glacier
After days with record heat at Svalbard, the penetration of water from the above melting glacier is now flooding Norway’s only operating coal mine that supplies the country’s only coal-power plant.
Longyearbyen, Svalbard, Svalbard and Jan Mayen
The Independent Barents Observer

Scientists: Potential landslide could generate large tsunami in Prince William Sound
The rapid retreat of Barry Glacier, 28 miles northeast of Whittier, could release millions of tons of rock into Harriman Ford and generate a large tsunami in Prince William Sound, according to Alaska's top geologist.
Barry Arm
Fairbanks Daily News-Miner

'Brilliant blues' of mountain lakes change as glaciers shrink
Shimmering mountain lakes will start to show new colours in coming years, new research suggests.
Zigadenus Lake, Banff National Park, Alberta, Canada
CBC

Rapid release of water from glacier-dammed lake prompts Kenai flood advisory
The National Weather Service has issued a flood advisory for Kenai Lake and the Kenai River near Cooper Landing.
Cooper Landing, Alaska, United States

'Way too close’: Kayakers encounter calving glacier in Southcentral Alaska
“It was a beautiful event that we were lucky to have survived,” Andrew Hooper said.
Spencer Glacier

Large icebergs are rare in Portage Lake nowadays. This week there are two new ‘shooters.'
“When I first started six years ago, icebergs like this were more common,” says a tour boat captain on the lake near Anchorage.
Whittier, Alaska, United States

Alaska glacier where boaters were found dead had recently become prone to calving, guide says
It's possible the trio’s canoe was upset by a calving, or shedding, piece of ice. Although all three were wearing life jackets, none was wearing a wetsuit to protect against the frigid water.
Tatitlek, Alaska, United States

3 kayakers found dead in water of Alaska glacier
Authorities in Alaska are investigating the deaths of three kayakers whose bodies were found in the water of a glacier.
Valdez, Alaska, United States
CBC

Melting of glacier causes flash floods in Pakistan's north
Pakistani officials say the melting of a glacier has unleashed landslides and floods in the country’s northern district of Ghizer, inundating dozens of homes and displacing hundreds of people. Mohammad Khalid, a local police official, said Friday that authorities are sending relief supplies to the flood-hit villages.
Peshawar, N.W.F.P., Pakistan
AP News

Glacier melt creates artificial lake in Gilgit
A small glacier melt has swollen Barsuwat Nullah in the Ishkoman valley of Ghizer district, Gilgit-Baltistan, creating an artificial lake and blocking the flow of the Immit River. Water has submerged more than 30 houses, cultivated land, a link road and cattle farms.
DAWN.COM

Authorities, residents brace for record flooding
Weather authorities and residents are getting used to responding to glacial floods in the Mendenhall Valley.
Juneau Empire

Hundreds of Arctic glaciers shrinking, disappearing into 'city of icebergs'
The statistics in her recently published paper say it all: hundreds of glaciers in Canada's High Arctic are shrinking and many are likely to disappear completely.
Slidre Fjord, Ellesmere Island, Nunavut
CBC

Watch a glacier half the size of Manhattan break off Greenland
All was quiet on June 22 as Canadian scientists David and Denise Holland settled in for the night off Greenland’s Helheim Glacier. But within minutes, five to eight billion tons of ice had broken off into the water.
Southeast Greenland

Huge chunks of ice afloat in northern B.C. lake, as glacier retreats
Atlin-based helicopter pilot Jamie Tait says a kilometre-long piece of ice recently broke off the Llewellyn Glacier, at the south end of Atlin Lake.
Atlin, British Columbia, Canada

Soaring temperatures pace up glacial melt in Pakistan's north
ISLAMABAD: Growing average temperatures in Pakistan’s north, have increased the melting pace of glaciers, said Mohammad Saleem, spokesperson for Climate Change Ministry and environmental...
Northern Areas, Pakistan
The International News

'Extreme' Changes Underway in Some of Antarctica’s Biggest Glaciers
Antarctic Glaciers
Inside Climate News

Large Earthquake Detected In Öræfajökull
The area around Öræfajökull glacier continues to show increased activity as the largest earthquake detected in the area, M3,6 on the Richter scale, occurred there this morning.
Öræfajökull Volcano, Iceland

In Peru’s Deserts, Melting Glaciers Are a Godsend (Until They’re Gone)
Accelerating glacial melt in the Andes caused by climate change has set off a gold rush downstream, letting the desert bloom. But as the ice vanishes, the vast farms below may do the same.
Virú, La Libertad, Peru
The New York Times

Global Warming Might Cause Increased Volcanic Activity in Iceland
When glaciers covered larger parts of Iceland, there was less volcanic activity in the country, a new study has found.

A glacier dam bursts and creates minor flooding on the Kenai
Sport fishermen are struggling to reel in the rainbow trout and Dolly Varden that usually are so abundant in fall.
Snow River Bridge, Alaska, United States
Alaska Dispatch News

Millions at risk of water shortages as Asian glaciers melt
Asian glaciers are set to shrink by at least a third by 2100 due to climate change, researchers said on Thursday, threatening the millions who depend on their meltwaters for drinking and farming.
Himalayan Mountains
Mail Online

Retreating Exit Glacier has become an icon of climate change
The celebrity glacier on the Kenai Peninsula, though relatively small and getting smaller, looms large in the public consciousness.
Exit Glacier, Alaska, United States
Alaska Dispatch News

A trillion-ton iceberg the size of Delaware is about to break off Antarctica
Scientists are divided about the impact of climate change on this particular break in Antarctica's ice shelf.
Weddell Sea, Antarctica
ChicagoTribune.com

At Denali base camp, unseasonable warmth creates dangers for climbers
The fall of a climber into a crevasse highlighted this season's risky combination of crumbling snow bridges and splintered climbing teams.
Kahiltna Glacier, Mount Denali, Alaska, United States
Alaska Dispatch News

Greenland Glacier Melt Actually Warped Earth's Crust
A massive wave of ice and water in 2012 caused the amount of ice lost from the Rink Glacier to increase by more than 50 percent
Rink Glacier, Greenland
Scientific American

Glacier National Park is Losing its Glaciers
Over the past 50 years, some of Glacier National Park's namesake glaciers have shrunk by as much as 85 percent.
Boulder Glacier, Glacier National Park
Climate Central

Earthquakes caused by melting glaciers?
There is some evidence that shifts in the weight on a land mass can affect earthquakes — and glaciers are receding around the world — but seismologists and glaciologists simply cannot “connect the dots” between the two happenings.
Juneau Empire

Receding glacier causes immense Canadian river to vanish in four days
Kaskawulsh Glacier, Yukon Territories, Canada
the Guardian

A new crack in one of Greenland's largest glaciers
Petermann Glacier, Greenland
CNN

Why Scientists Are Worried About a Landslide No One Saw or Heard
It’s all about climate change, retreating glaciers, and newly exposed rock.
Tanna Fiord, Alaska
Atlas Obscura

Photo series shows glacier disappear
A series of photos, taken by Guðmundur Ögmundsson, Skaftafell National Park manager in the past five years, shows in a striking way how Skaftafellsjökull glacier, an outlet glacier from Vatnajökull glacier, has receded.
Kálfafell, Iceland

Pictures Reveal How Climate Change Affects Glaciers in High Peru
"A photographer and environmental anthropologist explores melting glaciers in Peru."
Peru

Eklutna Glacier, a source of Anchorage drinking water, is disappearing drip by drip
A new study quantifies the rate at which Eklutna Glacier is losing its icy mass. Between 1957 and 2010, the loss of glacier mass averaged 5 percent a year.
Eagle River, Alaska, United States

Early Iceberg Season - Eastern Newfoundland and Labrador
Canada and U.S. Coast Guard Monitoring Conditions
Ellsiton, Newfoundland, Canada

Observing Eklutna Lake Water Level
The level of Eklutna Lake seems to be very low this winter. Over the long term, decline of the Eklutna Glacier is a concern for water and energy supply.
Eklutna Lake, Alaska, United States

Tourist Killed by Ice fall, Knik Glacier Alaska
The victim, identified as 28-year-old Alexander Hellweger, was part of a group of eight friends from Italy and Belgium vacationing in Alaska.

Mountain Snow and Ice Declining
Mount Sanford has been losing its ice cover for decades around its base.
Gakona, Alaska, United States

Extreme heat wave shrinks Sweden's tallest peak by 13 feet in a month
Kebnekaise mountain in Sweden will no longer be the tallest in the country as the glacier on its highest peak melts rapidly in an unprecedented heat wave.
Kebnekaise Mountain Peak, Sweden
NBC News

Scientists race to preserve crucial climate records in glacier ice before they melt away
Scientists are racing to collect ice cores — along with long-frozen records they hold of climate cycles — as global warming melts glaciers and ice sheets. Some say they are running out of time. And, in some cases, it's already too late.
Bourg-Saint-Pierre, Valais, Switzerland

‘Receding before our eyes:’ Vancouver Island glaciers likely to be all gone by mid-century
Retired logger Fred Fern has been taking photos of the Comox Glacier every year since 2013, and the receding ice mass is easy to see in the images. Using Google Earth, Fern has calculated the Comox Glacier lost 15 vertical feet after this summer’s heat — and as much as 120 vertical feet since his first photo in 2013.
vancouversun

In North Ural, researchers watch snowpack melt, exposing glacier’s boundaries
Snow is melting at a faster pace than ever in the Ural region and revealing the Igan glacier’s true area.
The Independent Barents Observer

Scientists are analyzing data from Denali’s Muldrow Glacier surge, which might unravel answers about the world’s glaciers
The glacier advanced just over 3.5 miles and moved about 65 feet per day earlier this year. Studying the surge involved a massive undertaking.
Muldrow Glacier

Another year of shrinking glaciers predicted in Sweden's far north
But first tests show very little new snow cover on the glacier from this past winter: ”The snow depth was only 1.2 metres — we had at least double that amount in previous years,” says Nina Kirchner, director of the Tarfala research station.
Kebnekaise Mountains

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